JP3107127B2 - Method and apparatus for assembling chain-shaped electric wire clamp - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method and an apparatus for assembling a chain-shaped electric wire clamp used in an apparatus for manufacturing a wire harness.

[0002]

2. Description of the Related Art With respect to a wire harness manufacturing apparatus, there is a technique described in Japanese Patent Application Laid-Open No. 1-221813. In this technique, as shown in FIG. 8, a plurality of pins P are erected on the upper surface of a wiring board B, and a chain-shaped electric wire clamp A is fixed to one end of the wiring board B. After the wiring table B is positioned at the routing station (not shown), the wiring table B
After a wire W supplied by a wiring head (not shown) provided to be able to move in a horizontal direction above the wire W is routed on a wiring board B, and a terminal T is crimped to an end of the wire W. .

The chain-shaped electric wire clamp A has a plurality of electric wire clamps 2 arranged and accommodated in a support rod 1 having a gutter-shaped cross section. The electric wire clamp 2 has a pair of holding claws 4 on an upper portion of a base 3. (See FIGS. 7 and 8). Then, one end of the wired electric wire W is pushed into the pair of clamping claws 4 when passing through the electric wire clamp 2, and is pinched by the pin P of the wiring board B. The end is pushed into the holding claw 4 of another wire clamp 2 and is held.
Therefore, the position of the electric wire clamp 2 that sandwiches both ends of the electric wire W affects the wiring length and the binding position of the electric wire W and must be accurate.

Next, the assembling work of the chain-shaped electric wire clamp A will be described. First, a clamp stopper 5 (see FIG. 9) is temporarily assembled to one end of the support rod 1. Clamp stopper 5
Is an upper holding plate 6 placed on a bent wall 1a (see FIG. 7) bent inward from the upper end of the supporting rod 1, a lower reference plate 7 inserted inside the supporting rod 1, and a holding plate. 6 and a reference bolt 7 for tightening the reference plate 7 against the bent wall 1a.

Next, in a state where one end of the support rod 1 and the clamp stopper 5 are brought into contact with the backing plate 10 fixed to the end face of the mounting table 9, the tightening bolt 8 is tightened, and the clamp stopper 5 is attached to the support rod 1. Fasten. The first wire clamp 2 is gripped, the base 3 of the wire clamp 2 is inserted from the other end of the support rod 1 (see FIG. 10), and comes into contact with the reference plate 7.
Next, the base 3 of the second wire clamp 2 is brought into contact with the base 3 of the first wire clamp 2. Similarly, a large number of electric wire clamps 2 are arranged and accommodated inside the support rod 1,
The clamp stopper 5 that comes into contact with the base 3 of the wire clamp 2 inserted last is fastened to the other end of the support rod 1.

[0006]

In order to increase the pitch accuracy of each of the arranged wire clamps 2, the wire clamps 2 are required.
The dimensional tolerance of the base 3 needs to be tight. Assuming that the dimensional error of the base 3 of the wire clamp 2 is -0.01 mm, the accumulated error when 115 wire clamps 2 are arranged is -1.15 mm, and the tolerance of the position of each wire clamp 2 (± 0.2 mm) ).

Therefore, in the actual assembling operation, every time the wire clamp 2 is inserted into the support rod 1, the distance of the wire clamp 2 is measured by the convex rule with reference to the first wire clamp 2 in contact with the clamp stopper 5. This is extremely inefficient because a complicated inspection must be performed. In addition, when the distance is negative, the adjustment is performed by sandwiching a piece of paper. When the distance is positive, the adjustment is performed by applying a pressing force to elastically compress the base 3, but the operation of elastically compressing is not easy. There was a problem that it took time to adjust the distance.

In order to prevent the electric wire clamp 2 from rattling in the support rod 1, the clearance between the two is reduced. As shown in FIG.
When individually inserted into the support rod 1, there is a problem that the wire clamp 2 does not easily enter the support rod 1 due to slight swinging of the grasped fingertip or inclination of the wire clamp 2. An object of the present invention is to solve such a problem, and the wire clamp 2 can be easily inserted into the support rod 1, so that the work of measuring the distance dimension of the inserted wire clamp 2 is unnecessary, and the accumulated error is an allowable error (± An object of the present invention is to provide a method and an apparatus for assembling a chain-shaped electric wire clamp which can efficiently perform an assembling operation without exceeding 0.2 mm).

[0009]

In order to achieve the above object, a method for assembling a chain-shaped electric wire clamp according to the present invention comprises a plurality of electric wire clamps having a pair of holding claws capable of holding an electric wire at an upper portion of a base. In the assembling of a chain-shaped wire clamp in which a wire rod is arranged at a predetermined pitch inside a support rod having a gutter-shaped cross section and both ends of an arrayed wire clamp are supported by a clamp stopper, a clamp stopper is temporarily assembled at one end. The support rod is inserted into a rod positioning member provided on a jig, and a moving block having a wire clamp insertion groove is pressed against the other end of the support rod to fix the support rod and move in parallel with the rod positioning member. After the clamp stopper is positioned and fixed by the pusher of the slider to be positioned, the wire clamp inserted into the wire clamp insertion groove is inserted into the support rod by the pusher. At the same time, the accumulated error in the length of the wire clamp row is corrected by comparing the position of the pusher tip with the rear surface of the wire clamp row, and in the same manner, each time a predetermined number of wire clamps are inserted, the inserted wire is The present invention is characterized in that a cumulative error in the length of a clamp row is corrected, and a clamp stopper for supporting a rearmost wire clamp is fixed to the support rod.

[0010] The assembly apparatus for carrying out the above method of assembly, multiple
A rod positioning member that positions one end and both side surfaces of a support rod in which several electric wire clamps are arranged therein, and a rod that is provided so as to be able to advance and retreat toward the rod positioning member. a movable block having a wire clamp insertion groove communicating with the inner surface, the jig and a clamp provided on the upper surface of the substrate to be pushed toward the movable block to the support rod in the rod positioning member, the rod positioning member A guide member parallel to the longitudinal direction is provided with a plurality of positioning holes drilled at a predetermined pitch, a slider slidable on the guide member, a positioning pin removably fitted in the positioning hole, and the support rod. And a positioning mechanism provided with a pusher which is inserted into the inside and whose tip serves as a positioning reference plane.

[0011] The wire clamp insertion groove has an opening width opening at an upper portion having a width that allows easy insertion of the wire clamp, and is reduced to the same plane as the inner surface of the support rod toward the end face contacting the support rod. It is preferable to form a tapered guide surface.

[0012]

The method of assembling the chain-shaped electric wire clamp constructed as described above will be described. A clamp stopper is temporarily assembled at one end of a support rod and inserted into a rod positioning member.
When the movable block is pressed against the other end of the support rod by operating the clamp, the support rod is positioned and fixed, and the wire clamp insertion groove of the movable block and the inner surface of the support rod communicate with each other in a straight line.

The clamp stopper temporarily assembled to one end of the support rod is fixed to the support rod by correcting the position according to the tip of the pusher of the slider that has been positioned. Next, a predetermined number of electric wire clamps are inserted into the electric wire clamp insertion groove, and when the slider that has receded to the moving block side is moved in the direction of the support rod along the guide member, the electric wire clamp pushed by the pusher, It moves from the wire clamp insertion groove into the support rod via the tapered guide surface.

When the positioning pin of the slider is inserted into the positioning hole of the guide member, the tip surface of the pusher is displayed at the correct rear surface position of the wire clamp, so that the distance between the rear surface of the inserted wire clamp and the tip surface of the pusher is changed. If there is a gap, a piece of paper having a thickness corresponding to the gap is inserted.
Conversely, if the pusher hits the rear surface of the wire clamp before positioning the slider, the wire clamp is pressed by the pusher and the positioning pin of the slider is inserted into the positioning hole of the guide member. In this way, every time a predetermined number of wire clamps are inserted, the accumulated error of the wire clamps is corrected.

After the insertion of the final group of wire clamps and the correction of the accumulated error are completed, a clamp stopper in contact with the last surface of the wire clamp is fixed to the other end of the support rod, and the assembling work of the chain-shaped wire clamp is completed. . As described above, each time a wire clamp is inserted, the accumulated error of the wire clamp is corrected, so that the position measurement, which has been performed every time one wire clamp is inserted as in the related art, becomes unnecessary.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a front view of a chained wire clamp assembling apparatus C, FIG. 2 is a plan view of FIG. 1, FIG. FIG. 4 is a view taken in the direction of the arrow X in FIG. A rod positioning member 12 is fixed to the upper surface of the substrate 11 made of a slender rectangular plate on the left side in FIG. The rod positioning member 12 is composed of a groove-shaped member 13 having side walls 13b erected at both ends of an elongated bottom wall 13a, and an end wall 15 fastened to the left end surface of the groove-shaped member 13 with screws 14. The support rod 1 can be inserted and removed inside.

A moving block 16 is provided on the right side of the rod positioning member 12 so as to advance and retreat toward the rod positioning member 12. The moving block 16 is provided with a wire clamp insertion groove 17 having a width whose upper opening allows the base 3 of the wire clamp 2 to be easily inserted.
Is formed at the left end thereof with a tapered guide surface 18 which decreases toward the end.

A guide plate 19 having an insertion guide surface 19a formed on the right end of the lower surface is fastened to the upper surface of the left end of the moving block 16 by screws 36 (see FIG. 1). The tapered guide surface 18 smoothly inserts and guides both side surfaces of the electric wire clamp 2 inserted into the electric wire clamp insertion groove 17 into the inner surface of the support rod 1 in the rod positioning member 12, and the guide plate 19. Is for smoothly inserting and guiding the upper surface of the base 3 of the wire clamp 2 into the inner surface of the support rod 1.

On the right side of the moving block 16, a toggle-type clamp 20 for pressing the moving block 16 against the support rod 1 in the rod positioning member 12 is provided, and a manual lever 21 of the clamp 20 is turned to the pushing side. Then, the pressing portion 22
Pushes the moving block 16 via the spring 23. As described above, the jig 24 that positions and fixes the support rod 1 and facilitates insertion of the wire clamp 2 into the support rod 1 is configured.

On the upper surface of the substrate 11, a rod positioning member 12 is provided.
A guide member 25 that is parallel to the longitudinal direction is provided.
A plurality of positioning holes 26 formed at a predetermined pitch (60 mm pitch when five wire clamps each having a thickness of 12 mm are inserted in units of 5) are provided on the upper surface of the wire 5. A slider 27 is slidably provided on the guide member 25.

A grip 28 for moving the slider 27 and a knob 29 for rotating operation are provided on the upper surface of the slider 27 (see FIG. 3). The knob 29 for rotating operation has a groove 30 provided on the lower surface of the outer peripheral surface and a positioning pin 31 extending downward.
7 (see FIG. 6).

On the upper surface of the cylindrical portion 32, a ridge 33 engaging and disengaging from the groove 30 is provided, and a knob 29 for rotating operation is pressed against the cylindrical portion 32 by a spring (not shown). When the slider 27 stops at a position where the positioning pin 31 and the positioning hole 26 coincide with each other, the turning knob 2 is turned.
When the groove 9 is rotated so that the groove 30 coincides with the ridge 33, the positioning pin 31 lowered together with the knob 29 for rotating operation is engaged with the positioning hole 26.

The pusher 34 provided on the side surface of the slider 27 has a tip portion inserted into the wire clamp insertion groove 17 (see a chain line in FIG. 2), and when the slider 27 moves to the left, the wire in the wire clamp insertion groove 17 is moved. The clamp 2 is pushed into the support rod 1 via the tapered guide surface 18. As described above, the positioning mechanism 35 for inserting and positioning the wire clamp 2 into the support rod 1 is configured.

Next, the assembling apparatus C configured as described above
The method of assembling the chain-shaped electric wire clamp A will be described with reference to FIG. One end of the support rod 1 (the support rod 1 in FIG.
Next, the support rod 1 is inserted into the rod positioning member 12, and the clamp 20 is operated to push the moving block 16 against the other end of the support rod 1. The left end of the support rod 1 hits the end wall 15, and both side surfaces of the support rod 1 are restrained by the side walls 13b.
Are positioned and fixed, and the wire clamp insertion groove 17 of the moving block 16 and the inner surface of the support rod 1 communicate in a straight line.

The slider 27 is moved to the left, the positioning pin 31 is inserted into the leftmost positioning hole 26 (shown by a dotted line in FIG. 2), and the clamp stopper 5 temporarily assembled to the left end of the support rod 1 is The pusher 34 is positioned against the tip of the pusher 34, and is fixed to the support rod 1 by tightening the tightening bolt 8 of the clamp stopper 5 (see FIG. 5). Next, a predetermined number (five in this embodiment) of the electric wire clamps 2 are inserted into the electric wire clamp insertion grooves 17, and the slider 27 retreated to the right is inserted.
Is moved to the left along the guide member 25, the pusher 3
4 is pressed into the wire clamp insertion groove 1
7 is inserted into the support rod 1 via the tapered guide surface 18.

When the positioning pin 31 of the slider 27 is inserted into the next positioning hole 26 of the guide member 25, the distal end surface of the pusher 34 is displayed at the correct rear surface position of the wire clamp 2 (see FIG. 6). If there is a gap between the rear surface of the wire clamp 2 and the distal end surface of the pusher 34, a paper piece having a thickness corresponding to the gap is inserted to correct the accumulated error of the wire clamp 2.

On the other hand, if the tip of the pusher 34 hits the rear surface of the wire clamp 2 before the positioning pin 31 is moved to the position where the positioning pin 31 is inserted into the positioning hole 26,
When the pusher presses the 34 wire clamp 2, the accumulated error on the rear surface of the wire clamp 2 is corrected, so that the positioning pin 31 can be inserted into the positioning hole 26. In this way, every time a predetermined number of wire clamps 2 are inserted, the accumulated error of the wire clamps 2 is corrected.

Insertion of the wire clamp 2 of the last group,
When the correction of the accumulated error is completed, the clamp stopper 5 that is in contact with the last surface of the wire clamp 2 is fixed to the other end of the support rod 1, and the assembling work of the chain-shaped wire clamp A is completed. As described above, each time a predetermined number of wire clamps 2 are inserted,
Since the accumulated error of the wire clamp 2 is corrected, the position measurement, which has been performed every time one wire clamp 2 is inserted as in the related art, becomes unnecessary.

[0029]

Since the present invention is configured as described above, the following effects can be obtained. (1) The tip of the pusher of the slider indicates the correct position of the rear surface of the wire clamps inserted in batches in units of a plurality, eliminating the need for inspection using a convex rule, etc., and assembling work has become more efficient. (2) Since the accumulated error of the wire clamp is corrected for each of the plurality of wire clamps, the tolerance of each wire clamp 2 (±
0.2 mm).

(3) Since the wire clamp is inserted into the wide wire clamp insertion groove, it can be easily inserted even if the wire clamp is rocked or inclined. Since the inserted electric wire clamp is corrected in the arrangement by the tapered guide surface and inserted into the support rod, the operation of inserting the electric wire clamp is facilitated.

[Brief description of the drawings]

FIG. 1 is a front view of a chain-shaped electric wire clamp assembling apparatus.

FIG. 2 is a plan view of FIG.

FIG. 3 is a rear view of FIG. 1;

FIG. 4 is a view taken in the direction of the arrow X in FIG. 1;

FIG. 5 is a vertical sectional view of a main part for explaining positioning of a clamp stopper.

FIG. 6 is a vertical sectional view of a main part for explaining positioning of an electric wire clamp.

FIG. 7 is a perspective view of a chain-shaped electric wire clamp.

FIG. 8 is a perspective view illustrating a wiring operation by the wire harness manufacturing device.

FIG. 9 is a longitudinal sectional view for explaining a conventional chain-shaped electric wire clamp assembling operation.

FIG. 10 is a perspective view of a conventional operation for inserting a wire clamp into a support rod.

[Explanation of symbols]

 Reference Signs List A Chain-shaped electric wire clamp C Assembly device 1 Support rod 2 Electric wire clamp 3 Base 4 Clamping claw 5 Clamp stopper 11 Substrate 12 Rod positioning member 16 Moving block 17 Wire clamp insertion groove 18 Tapered guide surface 20 Clamp 24 Jig 25 Guide member 26 Positioning hole 27 Slider 31 Positioning pin 34 Pusher 35 Positioning mechanism

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int.Cl. ⁷ , DB name) H01B 13/00 H01B 13/012 H05K 13/06

Claims (3)

(57) [Claims] 1. An array of wire clamps in which a plurality of wire clamps having a pair of holding claws capable of holding a wire at an upper portion of a base are arranged at a predetermined pitch inside a support rod having a gutter-shaped cross section. In the assembling of the chain-shaped electric wire clamp having both ends supported by the clamp stopper, the above-mentioned support rod temporarily assembled with the clamp stopper at one end is inserted into the rod positioning member provided on the jig, and the electric rod has a wire clamp insertion groove. The block is pressed against the other end of the support rod to fix the support rod, and the clamp stopper is moved and moved in parallel with the rod positioning member, and then the clamp stopper is positioned and fixed. The inserted wire clamp is inserted into the support rod by the pusher, and the position of the tip of the pusher is compared with the rear surface of the wire clamp row so that the wire clamp is Fixed cumulative error of the length of the flop column, in the same way, each time to insert the wire clamp of a predetermined number,
Correct the cumulative error of the inserted wire clamp row length,
A method of assembling a chain-shaped electric wire clamp for fixing a clamp stopper for supporting the rearmost electric wire clamp to the support rod. 2. A plurality of electric wire clamps are arranged inside.
A rod positioning member that positions one end and both side surfaces of the support rod , and is provided so as to be able to advance and retreat toward the rod positioning member,
A moving block having an electric wire clamp insertion groove communicating with the inner surface of the support rod in the positioning member when moving forward, and a clamp for pushing the moving block toward the support rod in the rod positioning member are mounted on the upper surface of the substrate. And a guide member parallel to the longitudinal direction of the rod positioning member is provided with a plurality of positioning holes drilled at a predetermined pitch. A chain-shaped electric wire clamp assembling apparatus comprising: a positioning mechanism provided with a positioning pin that can be fitted into and removed from a hole, and a pusher that is inserted into the support rod and has a tip serving as a positioning reference plane. 3. An electric wire clamp insertion groove, wherein an opening width opening upward has a width that allows an electric wire clamp to be easily inserted, and is flush with an inner surface of the support rod toward an end face contacting the support rod. 3. The chain-shaped electric wire clamp assembling apparatus according to claim 2, wherein a tapered guide surface is formed which is reduced in size.